Explaining on Instagram: "In Phineas and Ferb, the rivalry between Perry the Platypus and Dr. Heinz Doofenshmirtz is secretly one of the most wholesome dynamics on the show. 🐢🧪 Despite being sworn enemies, their encounters follow a familiar routine, complete with small talk, mutual understanding, and an unspoken respect. Doofenshmirtz often waits for Perry before explaining his plan, and Perry listens like a regular at this point. 🤝😄 Over time, it becomes clear they are not just adversaries